\begin{tabular}{lcccccc} \hline
 & (1) & (2) & (3) & (4) & (5) & (6) \\
VARIABLES & HHI & HHI & HHI & HHI & HHI & HHI \\ \hline
 &  &  &  &  &  &  \\
Commodity export share [0,1] & 891*** & 1,205*** & 434* & 316* &  &  \\
 & (140) & (179) & (224) & (162) &  &  \\
Export commodity price index (1=2012) &  &  &  &  & 1,019* & 792* \\
 &  &  &  &  & (613) & (470) \\
Log GDP per capita &  &  &  & -766*** &  & -785*** \\
 &  &  &  & (163) &  & (161) \\
Gini coefficient [0, 1] &  &  &  & -3,274*** &  & -1,920*** \\
 &  &  &  & (546) &  & (546) \\
Control of corruption &  &  &  & -458*** &  & -528*** \\
 &  &  &  & (64) &  & (65) \\
Regulatory quality &  &  &  & -353*** &  & -251*** \\
 &  &  &  & (77) &  & (76) \\
 &  &  &  &  &  &  \\
Observations & 2,139,469 & 2,137,776 & 2,125,664 & 1,677,999 & 2,198,400 & 1,750,776 \\
R-squared & 0.00 & 0.40 & 0.75 & 0.76 & 0.75 & 0.76 \\
HS digit product category & 6 & 6 & 6 & 6 & 6 & 6 \\
Country-product fixed effects & No & No & Yes & Yes & Yes & Yes \\
Product-year fixed effects & No & Yes & Yes & Yes & Yes & Yes \\
 Dependent variable mean & 4211 & 4208 & 4190 & 4114 & 4177 & 4101 \\ \hline
\multicolumn{7}{c}{ Robust standard errors in parentheses} \\
\multicolumn{7}{c}{ *** p$<$0.01, ** p$<$0.05, * p$<$0.1} \\
\end{tabular}
